Partially install both trim panels for body pillar

NOTE: Description is for left component only. Procedure on the right side is identical.

Installing the trim panel for the body pillar (partially removed)

Check the clips (1) for damage and replace where required.

Courtesy of BMW OF NORTH AMERICA, INC.
Insert the trim panel (1) for the body pillar in arrow direction in the guides (3) and below the lip of edge protection.
Clip the trim panel (1) in for the body pillar with the clips (2).

Courtesy of BMW OF NORTH AMERICA, INC.